Hi Dwarfield
I'm glad I'm not the only one who has found this thread interesting and educational. It's also been fun.
Your message fits nicely with what Bilko has written. If there are some in the AS group who have been incorrectly diagnosed with AS (as defined by Ebringer) they may well have one of the closely related diseases you refer to. Since the rheumatologist is only going to prescribe NSAID and exercise, whether it be for AS, RA or one of the other arthritic diseases, he probably thinks the difference is only academic anyway.
I too am working on reducing my NSAID dosage and should now be less than quarter as stupid.
Wally